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Texas Instruments LM6171BIN/NOPB
- Part No.:
- LM6171BIN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM6171BIN/NOPB.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,393
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Product details
Overview
LM6171BIN/NOPB from Texas Instruments is a high-speed, unity-gain-stable voltage-feedback amplifier optimized for video and precision analog signal processing. It delivers 3600 V/μs slew rate, 76 MHz unity-gain bandwidth (LM6171A), 110 dB CMRR, 2.5 mA supply current, and operates from ±5 V to ±15 V supplies - enabling high-fidelity NTSC/PAL line driving and ADC/DAC buffering.
For engineers reviewing the LM6171BIN/NOPB datasheet, LM6171BIN/NOPB pinout, LM6171BIN/NOPB application, or LM6171BIN/NOPB equivalent, key selection criteria include slew rate vs. load capacitance trade-offs, ±5 V vs. ±15 V output swing compliance, differential gain/phase performance at 3.58 MHz, and SOIC-8 thermal derating under continuous 100-Ω drive.
Technical Context
The LM6171BIN/NOPB uses a voltage-feedback architecture with fully differential input stage and Class AB output stage, supporting stable operation at AV ≥ +1 without external compensation. Its high open-loop gain (90 dB) and phase margin (58° for LM6171A) ensure low distortion in closed-loop configurations up to 75 MHz at AV = +2.
It features rail-to-rail input common-mode range (±13.5 V on ±15 V supplies), 14 Ω open-loop output resistance, and robust short-circuit protection delivering 135 mA sourcing/sinking capability - critical for driving 75-Ω video loads and fast-settling pulse applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 3600 V/μs - enables <21 ns 0.1% settling for ±5 V step at AV = −1 into 500 Ω, essential for HDTV pixel-rate amplification. |
| Unity-Gain Bandwidth | 76 MHz (LM6171A) - supports stable unity-gain operation in active filters and video buffers without peaking. |
| CMRR | 110 dB - rejects common-mode noise in differential-signal paths, preserving SNR in instrumentation amplifier front-ends. |
| Supply Current | 2.5 mA - allows low-power portable video systems using ±5 V rails while maintaining 75 MHz bandwidth. |
| Output Swing | ±13.3 V (RL = 1 kΩ, ±15 V) - delivers full dynamic range for broadcast-level analog video signals. |
| Differential Gain/Phase | 0.03%/0.5° - meets NTSC/PAL color fidelity requirements when driving 75 Ω cables at 3.58 MHz. |
| Input Voltage Noise | 12 nV/√Hz @ 10 kHz - minimizes added noise in low-level sensor signal conditioning chains. |
Pinout & Package
LM6171BIN/NOPB is housed in an 8-pin SOIC (D package), 4.9 mm × 6 mm body size, with standard JEDEC MS-012AC footprint and gull-wing leads. Thermal resistance RθJA = 122.5 °C/W enables operation up to +85°C ambient with moderate PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | No-connect (N/C) | Internally unconnected; must be left floating or tied to ground/V+ for mechanical stability only - no electrical function. |
| 2 | Inverting Input (–IN) | Differential input node; high-impedance (40 MΩ common-mode) with 1 μA bias current - requires matched trace impedance in video routing. |
| 3 | Non-inverting Input (+IN) | Differential input node; identical impedance/bias specs as Pin 2 - used for single-ended-to-differential conversion or unity-gain follower. |
| 4 | Negative Supply (V–) | Return path for dual-supply operation; must be decoupled with 0.1 μF ceramic capacitor within 5 mm of pin to suppress high-frequency oscillation. |
| 6 | Output | Class AB push-pull driver capable of ±116 mA continuous sourcing/sinking into 100 Ω - direct interface to 75 Ω coaxial lines with series termination. |
| 7 | Positive Supply (V+) | Primary power rail; supports ±5 V to ±15 V operation - supply rejection ratio >85 dB ensures immunity to digital supply noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-feedback topology | Enables intuitive gain-setting with standard resistive networks and predictable stability margins across AV = +1 to +10. |
| High output current drive | Delivers ±116 mA into 100 Ω at ±15 V - eliminates need for external buffer stages in composite video line drivers. |
| Low THD and SFDR | Harmonic distortion <−70 dBc at 10 MHz (AV = +2, RL = 100 Ω) - preserves signal integrity in ADC front-end sampling circuits. |
| Specified for ±5 V and ±15 V | Single design supports both portable (±5 V) and broadcast (±15 V) systems - reduces BOM count and qualification effort. |
| 75 Ω video-optimized performance | Differential gain/phase ≤0.03%/0.5° at 3.58 MHz with 75 Ω terminations - compliant with NTSC/PAL timing and color accuracy standards. |
Applications
| Video Line Driver | ADC/DAC Buffer |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable in CCTV or broadcast equipment with NTSC/PAL composite video signals. IC Role / Device Role / Timing Role: Final-stage voltage amplifier providing gain, level-shifting, and cable drive capability with minimal group delay variation. Use Value: 0.03% differential gain error and 0.5° phase shift at 3.58 MHz preserve color fidelity over 100 m cable runs. | Use Scenario: Isolating high-resolution SAR ADC inputs from multiplexer switching transients and reference noise. IC Role / Device Role / Timing Role: Low-noise, fast-settling unity-gain buffer ensuring accurate sampling of ±5 V analog inputs. Use Value: 21 ns 0.1% settling time and 12 nV/√Hz input noise prevent aperture uncertainty and quantization errors. |
| HDTV Signal Amplifier | Active Filter Stage |
Use Scenario: Amplifying RGB or YPbPr component video signals in 1080p consumer displays with minimal crosstalk. IC Role / Device Role / Timing Role: High-bandwidth gain block operating at AV = +2 with 75 MHz −3 dB point and low intermodulation distortion. Use Value: 3600 V/μs slew rate prevents transient-induced clipping during 74.25 MHz pixel clock edges. | Use Scenario: Implementing 4th-order low-pass filtering in medical imaging front-ends requiring precise cutoff and phase linearity. IC Role / Device Role / Timing Role: Unity-gain-stable op-amp in Sallen-Key or multiple-feedback topologies with programmable corner frequency. Use Value: 76 MHz GBW and 110 dB CMRR maintain filter Q-factor accuracy and stopband rejection despite supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed voltage-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM6172IM/NOPB | Dual-channel version in SOIC-8; identical AC specs but higher supply current (5.2 mA/channel). | Preferred for space-constrained dual-path systems (e.g., stereo audio, differential video pairs) where board area is premium. | Select when two matched high-speed amplifiers are required per IC - avoids layout mismatch and reduces component count. |
| THS3201DGN | Current-feedback architecture; 3000 V/μs slew rate, 1.8 GHz bandwidth, but requires careful feedback resistor selection and lacks DC precision. | Better suited for RF IF amplification (>100 MHz) where gain flatness matters more than DC offset or CMRR. | Choose only for wideband AC-coupled applications above 50 MHz - not recommended for DC-coupled video or precision buffering. |
Compared with LM6172IM/NOPB and THS3201DGN, LM6171BIN/NOPB offers superior DC precision (3 mV VOS), higher CMRR (110 dB), and simpler gain-setting, making it optimal for cost-sensitive, DC-coupled video and data acquisition systems where dual-channel integration or extreme RF bandwidth is unnecessary.
Availability
LM6171BIN/NOPB is available at Aetrix Electronics and suitable for video line driving, ADC/DAC buffering, and active filter design requiring stable component supply, long-term manufacturability, and TI's industry-standard SOIC-8 packaging.
Supply support for LM6171BIN/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with over 90 years of innovation in high-performance analog ICs.
The LM6171BIN/NOPB belongs to TI's Precision High-Speed Amplifier product line, engineered specifically for demanding video, instrumentation, and data acquisition applications requiring unity-gain stability, low distortion, and wide supply voltage flexibility.
FAQ
What supply voltages does the LM6171BIN/NOPB support?
The LM6171BIN/NOPB is specified for operation from ±5 V to ±15 V dual supplies, with absolute maximum rating of 36 V total supply (V+ – V–). At ±5 V, it delivers ±3.5 V output swing into 1 kΩ; at ±15 V, ±13.3 V swing is achievable - enabling use in both portable and broadcast-grade systems without redesign. The LM6171BIN/NOPB maintains 76 MHz bandwidth and 3600 V/μs slew rate across this full range.
Does the LM6171BIN/NOPB require external compensation?
No, the LM6171BIN/NOPB is unity-gain stable and does not require external compensation components. Its internal compensation ensures stable operation at closed-loop gains of +1 and higher, with measured phase margin of 58° (LM6171A) at AV = +1. This simplifies layout and eliminates tuning steps in video buffer and active filter designs - a key advantage over decompensated high-speed op-amps that mandate minimum gain conditions.
What is the maximum capacitive load the LM6171BIN/NOPB can drive stably?
The LM6171BIN/NOPB remains stable driving up to 1000 pF capacitive load at AV = +1, as verified in Figure 5-40 of the datasheet. However, slew rate degrades linearly with increasing load capacitance - dropping from 3600 V/μs (CL = 0 pF) to ~3000 V/μs at 1000 pF. For 75 Ω video line driving, a series 75 Ω resistor at the output isolates the amplifier from cable capacitance and ensures optimal transient response in the LM6171BIN/NOPB.
How does the LM6171BIN/NOPB perform in NTSC/PAL applications?
The LM6171BIN/NOPB is explicitly characterized for NTSC/PAL compliance: differential gain is 0.03% and differential phase is 0.5° at 3.58 MHz with 75 Ω terminations - meeting ITU-R BT.470 and EIA-770 standards. Its low distortion (<−70 dBc HD2/HD3 at 10 MHz), 75 MHz −3 dB bandwidth at AV = +2, and 3600 V/μs slew rate make it ideal for composite video amplification, sync tip clamping, and chroma/luma separation stages in the LM6171BIN/NOPB.
Is the LM6171BIN/NOPB pin-compatible with other TI high-speed op-amps?
The LM6171BIN/NOPB uses standard SOIC-8 pinout (Pin 2 = –IN, Pin 3 = +IN, Pin 4 = V–, Pin 6 = OUT, Pin 7 = V+) and shares identical footprint with LM6172IM/NOPB and OPA690ID. However, it is not pin-compatible with current-feedback amplifiers like THS3201DGN due to different biasing and feedback requirements. Always verify supply sequencing, decoupling, and gain network values when substituting - the LM6171BIN/NOPB requires no changes to PCB layout when replacing LM6172IM/NOPB in single-amplifier positions.
LM6171BIN/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- VIP™ III
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 3600V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- 160 MHz
- Current - Input Bias:
- 1 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 2.5mA
- Current - Output / Channel:
- 116 mA
- Voltage - Supply Span (Min):
- 5.5 V
- Voltage - Supply Span (Max):
- 34 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM6171BIN/NOPB FAQ
1.How can I place an order for LM6171BIN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6171BIN/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM6171BIN/NOPB reliable?
The price and inventory of LM6171BIN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6171BIN/NOPB is usually 5 days.
3.What payment methods are accepted for LM6171BIN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6171BIN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6171BIN/NOPB?
LM6171BIN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6171BIN/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM6171BIN/NOPB?
For technical support, including LM6171BIN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6171BIN/NOPB requirements.
6.How does Aetrix verify that LM6171BIN/NOPB is sourced from the original manufacturer or authorized distributors?
All LM6171BIN/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM6171BIN/NOPB meets industry standards.
7.What is the process for return or replacement of LM6171BIN/NOPB?
All LM6171BIN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM6171BIN/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM6171BIN/NOPB part is unused and in its original packaging.
Return procedure for LM6171BIN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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